Abstract: monitoring the atmospheric condition is emerging as an essential issue to keep in step with progress in technology. Recently many scholars have been monitoring the real-time atmospheric ...

A highly sensitive and accurate Nitrogen Dioxide (NO2) sensor has life-saving potential applications in domestic, public, and industrial settings, claim the team that developed it. Scientists at ...

The topmost part of the PIR sensor consists of a lens with concentric grooves carved into the plastic. These are called Fresnel lens. The contours on this plastic helps in gathering parallel light ...

Here is the schematic diagram of a Human-following robot circuit. This design incorporates three ultrasonic sensors, allowing distance measurements in three directions front, right, and left. These ...